最大占空比限制
maximal duty-cycle limited
最高空转转速
maximum no load governed speed
最近空位法则
closest-open-location(COL) rule
closed loop system
最优定占空比
optimal constant duty ratio
最优空时方向图
optimal space-time radio pattern
作空间关系
combat spatial relationship
作业地带空气流速
air velocity at work area